Our free Punctuation Checker scans your writing to detect missing spaces after commas, extra spaces before periods, uncapitalized sentence starts, curly smart quotes, and improper ellipses. Offers toggles to standardize spacing and auto-fix capitalization rules in real time. Features visual error highlights alongside clean plain-text copy mode with 100% client-side privacy.
Paste your essay, article, or document into the left text area.
Toggle punctuation rules (spacing after/before, capitalization, ellipses) in options.
Inspect visual error highlights or switch to plain view and copy corrected text.
Enforces proper spacing after punctuation marks while stripping unwanted whitespace preceding commas and periods.
Switch seamlessly between interactive highlighted error mode and clean plain text ready for immediate copying.
Punctuation checking runs strictly inside client JavaScript memory. Your text never leaves your device.
Commas, Oxford Commas, Colons & Semicolons: Proper punctuation structures complex ideas and prevents ambiguity. Punctuation rules govern Comma Splices (joining independent clauses without a conjunction), the Oxford / Serial Comma (the final comma in a series, required in APA/Chicago styles), and Semicolons (connecting closely related independent thoughts).
Quotes, Hyphens vs. En/Em Dashes & Apostrophes: BunchTool flags typographic errors including straight vs. curly smart quotes, incorrect apostrophe placements in possessives (e.g. it's vs. its), and improper dash usage: Hyphens (-) for compound adjectives, En Dashes (–) for numeric ranges, and Em Dashes (—) for parenthetical breaks.
Private Client-Side Typographic Scanning: Your articles, literary manuscripts, and professional emails are proofread 100% locally in web browser RAM. No text content, punctuation flags, or document paragraphs are ever transmitted to remote cloud servers.